SMTL ID : 8ufq.1 (1 other biounit)

Structure of human neuronal nitric oxide synthase R354A/G357D/E597Q mutant heme domain obtained after soaking crystal with 4-methyl-7-(4-methyl-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)quinolin-2-amine dihydrochloride

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.98 Å

Oligo State

homo-dimer

Ligands

2 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.1: 21 residues within 4Å: Chain A: W.113, A.116, R.118, C.119, V.120, G.121, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, Q.296, V.353, W.382, F.408, Y.410 Ligands: GOL.2, H4B.7 21 PLIP interactions: 21 interactions with chain A, Hydrophobic interactions: A:W.113, A:W.113, A:W.113, A:A.116, A:R.118, A:L.128, A:F.288, A:F.288, A:F.288, A:W.291, A:Q.296, A:V.353, A:W.382, A:F.408, A:F.408, A:F.408 Hydrogen bonds: A:Q.296, A:Y.410 Salt bridges: A:R.118 pi-Stacking: A:W.113 Metal complexes: A:C.119 HEM.8: 21 residues within 4Å: Chain B: W.113, A.116, R.118, C.119, V.120, G.121, L.128, S.161, M.274, F.288, S.289, G.290, W.291, M.293, Q.296, V.353, W.382, F.408, Y.410 Ligands: H4B.6, GOL.9 22 PLIP interactions: 22 interactions with chain B, Hydrophobic interactions: B:W.113, B:W.113, B:W.113, B:A.116, B:R.118, B:V.120, B:L.128, B:L.128, B:F.288, B:F.288, B:F.288, B:W.291, B:W.291, B:Q.296, B:V.353, B:W.382, B:F.408, B:F.408 Hydrogen bonds: B:Q.296 Salt bridges: B:R.118 pi-Stacking: B:W.113 Metal complexes: B:C.119

5 x GOL: GLYCEROL(Non-functional Binders)

GOL.2: 7 residues within 4Å: Chain A: P.269, V.271, F.288, S.289, G.290, Q.296 Ligands: HEM.1 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.290, A:Q.296 GOL.3: 2 residues within 4Å: Chain A: Q.68, R.373 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:Q.68, A:Y.107, A:R.373 Water bridges: A:K.23, A:Q.68, A:Q.68, A:R.114, A:R.114, A:T.405 GOL.4: 6 residues within 4Å: Chain A: I.106, K.110, K.127, L.128, Q.129, V.130 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:K.110, A:V.130, A:V.130 Water bridges: A:Q.129 GOL.9: 7 residues within 4Å: Chain B: P.269, V.271, F.288, S.289, G.290, Q.296 Ligands: HEM.8 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:G.290, B:Q.296 GOL.10: 3 residues within 4Å: Chain B: K.23, Q.68, R.373 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:Q.68, B:R.373 Water bridges: B:K.23, B:Q.68, B:Q.68, B:Y.107, B:T.405

1 x ZN: ZINC ION(Non-covalent)

ZN.5: 6 residues within 4Å: Chain A: C.30, C.35, M.36 Chain B: C.30, C.35, M.36 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:C.30, A:C.35, B:C.30, B:C.35

2 x H4B: 5,6,7,8-TETRAHYDROBIOPTERIN(Non-covalent)

H4B.6: 9 residues within 4Å: Chain A: W.380, F.395, H.396, Q.397, E.398 Chain B: S.38, V.381, W.382 Ligands: HEM.8 5 PLIP interactions: 4 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:V.381, B:W.382 pi-Stacking: B:W.382, B:W.382 Hydrophobic interactions: A:E.398 H4B.7: 9 residues within 4Å: Chain A: S.38, V.381, W.382 Chain B: W.380, F.395, H.396, Q.397, E.398 Ligands: HEM.1 7 PLIP interactions: 6 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:V.381, A:W.382 Water bridges: A:S.38, A:W.382 pi-Stacking: A:W.382, A:W.382 Hydrophobic interactions: B:E.398

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Li, H. et al., Crystallographic and Computational Insights into Isoform-Selective Dynamics in Nitric Oxide Synthase. Biochemistry (2024)

Release Date

2024-03-13

Peptides

Nitric oxide synthase 1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Nitric oxide synthase 1

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